There's a reason why most propeller aircrafts use front-facing engines. And it's not just for the iconic aesthetic they've ...

Fighter jets (and other aircraft, like helicopters) often have to travel extreme distances, so how do they stay fueled? Easy.

Airbus has unveiled a hydrogen-powered prototype with four electric engines, resembling old propeller planes from the outside – but inside, it hides futuristic technology based on fuel cells.